Efficacy of Entomopathogenic Fungi as Green Pesticides: Current and Future Prospects

Sandhu, Sardul Singh; Shukla, Harshita; Aharwal, Ravindra Prasad; Kumar, Suneel; Shukla, Shyamji

doi:10.1007/978-981-10-6241-4_17

Cited by 9 publications

(5 citation statements)

References 72 publications

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“…M. anisopliae CQMa421 also showed pathogenicity againts the locust L. migratoria adults and nymphs with LT50 values of 6.0 and 5.0 days, respectively at the concentration of 1 × 10 8 conidia/mL, and LC50 (log10) values of 5.2 and 5.6, respectively after 10 days (Jiang et al 2019). Unsurprisingly, B. bassiana and M. anisopliae have been developed as important bioinsecticides and used for commercial products for many years (Sandhu et al 2017).…”

Section: Discussionmentioning

confidence: 99%

Isolation and screening of entomopathogenic fungi against the grasshopper Oxya chinensis (Orthoptera: Acrididae) from rice fields in Thua Thien Hue, Vietnam

Cuong

SOUVANNALATH²,

et al. 2022

Biodiversitas

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Abstract. Cuong LCV, Souvannalath B, Ha TP, Lien LQ, Tam VTT, Hoai PTT, Anh HLT, Dat TTH. 2022. Isolation and screening of entomopathogenic fungi against the grasshopper Oxya chinensis (Orthoptera: Acrididae) from rice fields in Thua Thien Hue, Vietnam. Biodiversitas 23: 4906-4911. The grasshopper Oxya chinensis is one of the most abundant herbivorous insects of rice plants in Vietnam and causes severe damage to the crop. Therefore, biological control has become a particularly valuable method for grasshopper and insect control in agricultural production. The aim of the present study was to isolate and investigate the potential entomopathogenic fungi against the grasshopper O. chinensis from rice fields in Thua Thien Hue, to develop environmentally friendly bio-insecticides. The results showed that 37 fungal isolates were isolated from dead grasshoppers collected from rice fields in Thua Thien Hue province. Results of pathogenicity screening of 12 selected fungal isolates showed that the mortality rate of 4th-instar grasshopper nymphs O. chinensis ranged from 21.99% to 100% after 15 treatment days at a concentration of 1 × 108 conidia/ml. Of these, three fungal isolates, namely NL3, NL4, NL12 showed the highest pathogenicity against the grasshopper O. chinensis with mortality rates of 87.73%, 89.81%, and 100%, respectively after 15 days. LC50 values of NL3, NL4, NL12 isolates against 4th-instar nymphs and adults of O. chinensis ranged from 9.5×104 to 4.8×105 conidia/mL and 7.8 × 106 to 2.5 × 106 conidia/mL, respectively at 7 days. LT50 values of NL3, NL4, NL12 isolates against 4th-instar nymphs and adults of O. chinensis were from 4.1 to 4.9 days and 5.5 to 6.1 days, respectively at a concentration of 1 × 108 conidia/mL. Results from morphological identification and nuclear ribosomal internal transcribed spacer (ITS) gene sequence showed that three potential entomopathogenic fungi were Aspergillus tamarii, Beauveria bassiana, and Metarhizium anisopliae. The pathogenicity of Aspergillus tamarii, Beauveria bassiana, and Metarhizium anisopliae against the grasshopper O. chinensis is reported for the first time. The present investigation revealed that these entomopathogenic fungi could be a useful source for developing environment-friendly bio-insecticides for sustainable agricultural production.

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Section: Discussionmentioning

confidence: 99%

Isolation and screening of entomopathogenic fungi against the grasshopper Oxya chinensis (Orthoptera: Acrididae) from rice fields in Thua Thien Hue, Vietnam

Cuong

SOUVANNALATH²,

et al. 2022

Biodiversitas

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“…Differences in pathogenicity among isolates were common; these were attributed to their ability to produce mycotoxins and enzymes during the infection process in insects (Balachander et al, 2012; Trizelia et al, 2017). Several extracellular enzymes produced by EPF also play a significant role in their pathogenicity (Sandhu et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Sub‐lethal effects of Metarhizium anisopliae on the life table parameters of the predatory coccinellid Menochilus sexmaculatus Fabricius

Atrchian

Mahdian

Izadi

2022

J Applied Entomology

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Entomopathogenic fungi Metarhizium anisopliae (Metschnikoff) (Hypocerales: Claviciptaceae), as a microbial control agent, and the predator Menochilus sexmaculatus (Fabricius) (Coleoptera: Coccinellidae) have been considered to regulate insect pest populations. The experiments were conducted on adults of coccinellid that were sprayed with conidial suspensions at a concentration of 1.11 × 104 conidia ml−1. This study reports on some laboratory experiments investigating the effects of the isolate of M. anisopliae on the biological and life history traits of Men. sexmaculatus by using the paired bootstrap procedure. Males progeny from individuals exposed to the fungus had a significantly different developmental time, but there was no difference between females when compared to the control group. However, fecundity did not differ in the treated and control groups (391 and 408.39 eggs respectively); the sex ratio (%female/total) ranged from 62% to 63%. The intrinsic rate of increase (r), finite rate of increase (λ) and net reproductive rate (R0) had no significant differences in the progeny of the fungal‐treated and untreated groups. Consequently, M. anisopliae had low effects in the sub‐lethal concentration on the biological parameters and fecundity of Men. sexmaculatus. The results, thus, suggest that M. anisopliae may be compatible with Men. sexmaculatus in an IPM programme.

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“…Penggunaan komersial jamur entomopatogenik untuk pengendalian dengan mikroba terhadap hama serangga memerlukan pemahaman akan aspek fisiologis pertumbuhan, aktivitas metabolik, dasar genetik dari virulensi, dan spesifitas terhadap inang. Beberapa teknik untuk produksi massal jamur entomopatogenik tersedia, sebagian besar dirancang untuk menghasilkan konidia yang infektif; konidia tersebut diambil dan diformulasikan untuk penyimpanan dan penggunaan lapangan (S.S. Sandhu et al 2017). Kesulitan terkait dengan formulasi biopestisida berbasis B. bassiana termasuk dalam menemukan bahan-bahan yang dapat digabungkan, untuk mendapatkan tidak hanya viabilitas konidia tetapi juga stabilitas mereka (misalnya, toleransi terhadap pengeringan, perlindungan UV, masa simpan, dll.)…”

Section: Produksi Massal Jamur Untuk Komersialisasiunclassified

Beauveria Bassiana; Insect Pathogen And Biopesticide Producer As An Effective And Environmentally Friendly Alternative For Biological Control

Eko Wahjono,

Yuliani,

Hadiyanto

2024

AFP

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Beauveria bassiana is one of the insect pathogens that can be used as a biological control agent. The interaction between Beauveria bassiana and other natural enemies in biological control can affect the effectiveness of pest control as a biopesticide. The efficacy of these fungi was also influenced by the toxin produced (beauvericin, bassianin, bassiacridin, beauvericin, bassianolide, cyclosporine, oosporein, and tenellin) which may interfere the nervous system and kill the target insects. The use of chemical pesticides, which has been one of the farmers’ choices in pest control, has negative impacts on the environment, human health, and pest resistance therefore, B. bassiana as an alternative, biological pest control and biological control are increasingly considered as environmentally friendly and sustainable control methods, so that biological control can become an important alternative to reduce the use of chemical pesticides. Facing this problem, alternative methods including the use of entomopathogenic fungi as biopesticide could be a sound measure to preserve the environment, biodiversity and ensure good quality of crops.

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Efficacy of Entomopathogenic Fungi as Green Pesticides: Current and Future Prospects

Cited by 9 publications

References 72 publications

Isolation and screening of entomopathogenic fungi against the grasshopper Oxya chinensis (Orthoptera: Acrididae) from rice fields in Thua Thien Hue, Vietnam

Isolation and screening of entomopathogenic fungi against the grasshopper Oxya chinensis (Orthoptera: Acrididae) from rice fields in Thua Thien Hue, Vietnam

Sub‐lethal effects of Metarhizium anisopliae on the life table parameters of the predatory coccinellid Menochilus sexmaculatus Fabricius

Beauveria Bassiana; Insect Pathogen And Biopesticide Producer As An Effective And Environmentally Friendly Alternative For Biological Control

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